package com.tanhua.manager.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.tanhua.manager.domain.AnalysisByDay;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

import java.util.Date;

public interface AnalysisMapper extends BaseMapper<AnalysisByDay> {

    /**
     * 查询累计用户数
     * @return 累计用户数
     */
    @Select("SELECT SUM(num_registered) FROM tb_analysis_by_day")
    Long cumulativeUsers();

    /**
     * 统计过去日期范围内的活跃用户数
     * @param start 开始日期
     * @param end 结束日期
     * @return 过去30天的活跃用户数
     */
    @Select("SELECT SUM(num_active) FROM tb_analysis_by_day WHERE record_date BETWEEN #{start} AND #{end}")
    Long queryActiveUsers(@Param("start") Date start, @Param("end") Date end);
}